Finding the Fourth Proportional to 105.01, 144.88 and 61.33

Step by Step Solution

1. Step 1: Write the proportion equation
   105.01 : 144.88 = 61.33 : x
2. Step 2: Convert to fraction form
   105.01/144.88 = 61.33/x
3. Step 3: Cross multiply
   105.01x = 144.88 × 61.33
4. Step 4: Simplify right side
   105.01x = 8,885.49
5. Step 5: Solve for x
   x = 8,885.49/105.01
6. Step 6: Final answer
   x = 84.62